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BURIAL AND SCOUR OF SHORT CYLINDERS AND TRUNCATED CONES DUE TO LONG-CRESTED AND SHORT-CRESTED NONLINEAR RANDOM WAVES PLUS CURRENTS

[+] Author and Article Information
Muk Chen Ong

Department of Mechanical and Structural Engineering and Materials Science, University of Stavanger, NO-4036, Stavanger, Norway
muk.c.ong@uis.no

Dag Myrhaug

Department of Marine Technology, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
dag.myrhaug@ntnu.no

1Corresponding author.

ASME doi:10.1115/1.4038938 History: Received March 17, 2016; Revised December 26, 2017

Abstract

This paper provides a practical stochastic method by which the burial and scour depths of short cylinders and truncated cones exposed to long-crested (2D) and short-crested (3D) nonlinear random waves plus currents can be derived. The approach is based on assuming the waves to be a stationary narrow-band random process, adopting the Forristall second-order wave crest height distribution representing both 2D and 3D nonlinear random waves. Moreover, the formulas for the burial and the scour depths for regular waves plus currents presented by previous published work for short cylinders and truncated cones are used.

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